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Diffstat (limited to 'vespalib/src/tests/arrayref/arrayref_test.cpp')
-rw-r--r-- | vespalib/src/tests/arrayref/arrayref_test.cpp | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/vespalib/src/tests/arrayref/arrayref_test.cpp b/vespalib/src/tests/arrayref/arrayref_test.cpp new file mode 100644 index 00000000000..ad11d9b6ba4 --- /dev/null +++ b/vespalib/src/tests/arrayref/arrayref_test.cpp @@ -0,0 +1,56 @@ +// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root. + +#include <vespa/vespalib/testkit/test_kit.h> +#include <vespa/vespalib/util/arrayref.h> + +using namespace vespalib; + +TEST("require that default constructors create references to empty arrays") { + ArrayRef<int> array_ref; + ConstArrayRef<int> const_ref; + EXPECT_EQUAL(array_ref.size(), 0u); + EXPECT_EQUAL(array_ref.begin(), array_ref.end()); + EXPECT_EQUAL(const_ref.size(), 0u); + EXPECT_EQUAL(const_ref.begin(), const_ref.end()); +} + +TEST("require that data can be referenced") { + std::vector<int> data({1,2,3}); + ArrayRef<int> array_ref(data); + ConstArrayRef<int> const_ref(data); + EXPECT_EQUAL(array_ref.size(), 3u); + EXPECT_EQUAL(array_ref.end() - array_ref.begin(), 3); + EXPECT_EQUAL(array_ref[1], 2); + EXPECT_EQUAL(const_ref.size(), 3u); + EXPECT_EQUAL(const_ref.end() - const_ref.begin(), 3); + EXPECT_EQUAL(const_ref[2], 3); +} + +TEST("require that non-const array ref can be written to") { + std::vector<int> data({1,2,3}); + ArrayRef<int> array_ref(data); + array_ref[1] = 5; + EXPECT_EQUAL(data[1], 5); +} + +TEST("require that references can be constified") { + std::vector<int> data({1,2,3}); + const ArrayRef<int> array_ref(data); + ConstArrayRef<int> const_ref(array_ref); + EXPECT_EQUAL(const_ref.size(), 3u); + EXPECT_EQUAL(const_ref.end() - const_ref.begin(), 3); + EXPECT_EQUAL(const_ref[2], 3); +} + +TEST("require that references can be unconstified") { + std::vector<int> data({1,2,3}); + const ConstArrayRef<int> const_ref(data); + ArrayRef<int> array_ref = unconstify(const_ref); + EXPECT_EQUAL(array_ref.size(), 3u); + EXPECT_EQUAL(array_ref.end() - array_ref.begin(), 3); + EXPECT_EQUAL(array_ref[1], 2); + array_ref[1] = 5; + EXPECT_EQUAL(data[1], 5); +} + +TEST_MAIN() { TEST_RUN_ALL(); } |